The Kite
The kites, or Gudiparan (literally meaning flying doll) as it's called in Afghanistan, came in different sizes - from smallest which was only about 10-12 inches in diameter to largest which was human size - Mahi gec, nim takhtai, se parcha, panj parcha, shesh parcha and the famous humongous haft parcha or simply "haft". The shape was mostly conserved throughout the family of Kites. They were all made of thin paper and the skeleton supported by bamboo wood, investing on its malleability and flexibility.
The Fight (Jang)
In order to have a kite fight, 2 kites had to be airborne simultaneously at a close proximity. As soon as the wire of these two kites contacted each other, the fight had began. The fight would last from a split second to up to 1/2 hour, depending on wind, the difference in quality of tar between the two parties and other undetermined factors. Generally the one with most experience and patience win the fight, given the same quality of the tar, kite and charkha gir. The general concept was to release wire, and avoid pulling when in a kite fight. The faster you release the more likely one would win the fight. This theory is based on a complex dynamic relationship of the wires while in the air, which held true for the most part. Since larger kites had greater pull, greater release of wire per second was anticipated and thus greater chance of winning with a larger kite. However this theory had it's limitations - larger kites have been known to lose to much smaller kites. The quality of tar was also an important factor in determining who was to go home with a kite. Some would preach that the smoother the wire, the better it would cut the opponent, as it would be more fluid during the fight. Further, the wire with more shisha (sharper) would get stuck easily and get cut. However, proponents would argue that sharper wire would serve better specially during "kashak" (a fight where one of the parties go on offense and pull very hard under the opponent - this fight would last no more than a second usually) Though there are no randomized trial research to determine which method served best, somewhere in between is probably where one wants to be.
The Sharti
Most Kocha's (A block of street) had their own Sharti (Kite fight Champion). Sharti title was given to the one who had the impeccable record of not losing a kite fight. Shartis generally had a good grasp of what they should do in a particular kite fight to win, or at least not lose. They also had a style and elegance that would capture audience throughout the neighborhood. However, even sharti's would occasionally lose, and this was generally a big deal to many kochagis (neigborhood).